Zero-fluoroscopy catheter ablation of premature ventricular contractions: comparative outcomes from the right ventricular outflow tract and other ventricular sites.

Background: The three-dimensional electroanatomic mapping (EAM) system allows performing catheter ablation (CA) without fluoroscopy in patients with premature ventricular contractions (PVCs). The right ventricle outflow tract (RVOT) location is favorable for performing zero-fluoroscopy CA. Non-RVOT zero-fluoroscopy CA is a challenging procedure.

Efficacy of Catheter Ablation Using the Electroanatomical System without the Use of Fluoroscopy in Patients with Ventricular Extrasystolic Beats.

Background: Catheter ablation (CA) has become safe and efficient for the treatment of patients with ventricular extrasystolic beats (VEBs). The three-dimensional electroanatomic mapping (EAM) system allows the elimination of fluoroscopy time during CA procedures. Non-fluoroscopy CA is a challenging procedure requiring intimate knowledge of cardiac anatomy in patients with VEBs.

Efficacy and Safety of Zero-Fluoroscopy Approach during Catheter Ablation of Accessory Pathway.

Background: Catheter ablation (CA) is a safe and efficient treatment in patients with an atrioventricular accessory pathway (AP). Electroanatomical mapping (EAM) systems are useful during CA of AP, especially for reducing fluoroscopy. There are limited data about the feasibility of CA procedures performed with the use of the EAM system entirely without fluoroscopy in adults with AP.

Direct results of a prospective randomized study comparing ablation with the nMARQ catheter and the PVAC catheter used with and without a 3D system (MAPER 3D Study).

Introduction: Our aim was to compare in a prospective randomized study the safety, direct results and periprocedural data of ablation using an nMARQ catheter, a PVAC catheter used with the EnSite system, or a PVAC catheter only under fluoroscopy control.

Material And Methods: One hundred two patients (70 male, 57 ±11 years) with atrial fibrillation (AF) were prospectively randomized to: group 1 - ablation performed with an nMARQ catheter and the CARTO 3 system; group 2 - a PVAC catheter used with the EnSite system; group 3 - ablation with a PVAC catheter without a 3D system.

Results: Complete isolation of 400/402 pulmonary veins (PV) (99.

Effectiveness comparison of various atrial fibrillation ablation methods in patients with common venous trunk.

Background: Atrial fibrillation (AF) is a common clinical problem. The left atrium anatomy makes up a factor that may significantly affect the effectiveness of the AF ablation.

Objectives: The aim of the study was to evaluate a long-term effectiveness ablation in patients with common pulmonary vein trunk (CPVT) and AF.

Safety and efficacy of cryoablation without the use of fluoroscopy.

Background: Development of electroanatomical systems make it possible to perform ablations without the use of fluoroscopy. The aim of this study was to evaluate the efficacy and safety of cryoablation pro-cedures without the use of fluoroscopy.

Methods: The study group consisted of 45 patients (14 female; age 36 ± 15 years) treated with cry-oablation using the EnSite electroanatomical system: 10 with ventricular extrasystoly from the right ventricle, 6 with the arrhythmogenic site near the left coronary artery, 17 patients with Wolff-Parkinson- -White syndrome (WPW), 2 patients with atrioventricular nodal reentrant tachycardia (AVNRT) type 2, 7 patients with AVNRT type 1, 3 patients with atrial tachycardia.

Catheter ablation of cardiac arrhythmias in pregnancy without fluoroscopy: A case control retrospective study.

Background: Cardiac arrhythmias are common in pregnant women. In most cases, they do not require treatment other than rest, electrolyte supplementation and avoidance of strong coffee and tea. Persistent arrhythmia or the ventricular rate running at a high frequency may cause hemodynamic deterioration in the fetus or in both the fetus and the mother.

Efficacy of multi-electrode duty-cycled radiofrequency ablation in patients with paroxysmal and persistent atrial fibrillation.

Background: Radiofrequency (RF) catheter ablation is a first-line therapy for patients withdrug-refractory atrial fibrillation (AF). Complete isolation of electrical potentials at the ostium of pulmonary vein (PV) is a challenging procedure. There are different techniques and devicesused for PV isolation (PVI).